Dental erosion is the loss of substance that occurs in the hard tissues of the teeth without being related to a bacterial component as a result of acid attacks. This condition, which is caused by continuous acid exposure, is irreversible. The aim of this review is to examine the anti-erosive materials and to present protective and invasive treatment methods. Many materials are recommended to prevent dental erosion. Studies about sodium fluoride, stannous fluoride, casein phosphopeptide-amorphous calcium phosphate and tricalcium phosphate, protease inhibitors, oils, chitosan and multivalent metal ions are available. Beyond all available materials and methods, the most critical point in treatment is the detection and elimination of the erosion causing factor. This is only possible with the early diagnosis of the erosive lesion, and the detection and elimination of the etiological factor with a good anamnesis.